✨ Support for Qiskit 1.0

[burgholzer]

Description

This PR adjusts the codebase to the changes from the 1.0 release of Qiskit. This entails:

• Slight changes to the Qiskit primitives code since some members were moved from the interface BaseSampler/BaseEstimator to the implementation Sampler/Estimator. Coincidentally, this simplifies some of the code.
• Slight changes to the existing Qiskit backends. The maximum number of qubits of the statevector and unitary simulators are now hardcoded since Qiskit decided to drop the psutils dependency. The defaults that have been put in place should still be reasonable for any use case where building the package from source is not an option.

In order to avoid all kinds of ugly compatibility hacks, this PR also changes the minimum required Qiskit version to 1.0.
Since Qiskit has devoted themselves to following semantic versioning from now on out, this hopefully means fewer compatibility changes in the future.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a50b525) 92.7% compared to head (03039c6) 92.6%.

Additional details and impacted files

@@           Coverage Diff           @@
##            main    #349     +/-   ##
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- Coverage   92.7%   92.6%   -0.2%     
=======================================
  Files         35      35             
  Lines       2660    2611     -49     
  Branches     345     345             
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- Hits        2468    2419     -49     
  Misses       192     192             

Flag	Coverage Δ		*Carryforward flag
cpp	94.6% <ø> (ø)		Carriedforward from 54db8e8
python	86.8% <100.0%> (-1.0%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
src/mqt/ddsim/hybridqasmsimulator.py	90.9% <100.0%> (ø)
src/mqt/ddsim/hybridstatevectorsimulator.py	100.0% <ø> (ø)
src/mqt/ddsim/pathstatevectorsimulator.py	100.0% <ø> (ø)
src/mqt/ddsim/primitives/estimator.py	93.4% <100.0%> (-1.6%)	⬇️
src/mqt/ddsim/primitives/sampler.py	100.0% <100.0%> (ø)
src/mqt/ddsim/qasmsimulator.py	98.8% <ø> (-0.2%)	⬇️
src/mqt/ddsim/statevectorsimulator.py	100.0% <ø> (ø)
src/mqt/ddsim/unitarysimulator.py	87.5% <ø> (ø)